Shoe sole



L. M. OAKLEY Get. 27, 1925- SHOE SOLE Filed March 6, 1922 Suva "tea 5,747 MLfW Patented Oct. 2?, 1925.

uui'ruo STATES LAURENCE M. OAKLEY, OE TRENTON, NEW JERSEY. ASSIGNOR TO ESSEX RUBBER.

COMPANY, OF TRENTON, NF?! JERSEY, A CORPORATION OF NEW JERSEY, I

SHOE SOLE.

Application filed March 6, 1922. Serial No, 541.369,

To all whom it may mince-wt:

Be it known that I, LAUR'ENLL M, OAKLEY, a citizen of the United States nil. a res dent of Trenton, county of Mercer, State of B New Jersey, have invented an Improvement in Shoe Soles, of which the following a specification The resent invention relates-i to molded composition soles for bout: uurl shoee. The

object of the invention is to provide an untislipping sole for shoes for general snort wear and more particularly asole which will effectively grip surfaces of different types, such as sod, dirt, wet SilOllzl and smooth floors, not only when the sole is new but after it has worn.

The nature obieo at he invention will be best umlersti'io'i time c :lcscii tion of a particular illhurutiie wulowl mcnt thereof. For the purpoees f such ll; i

tion reference will be nuulc the it,

panying drawings, in w 1 Figure l is a! plan ice 1: umn itconstructed in accordance uith the principles of the invention;

Figure u sectional \imv tukeu on the line 2--Q of Figure l.

The sole shun =1 for the purpmr trution is an outer sole :u.,1ptc-:l to E ner porated in any (iesireal shoe bu in iu'uwi more especially for sport chm-e. is made preferably of rubber or some sinu r wit able composition l'll'dlllfiil i'utu desired torn".- and vulcanized to such an extent as will give it the desired stillness. Anti-slipping devices are suitably urrungetl over a elesired area of the sole, iu luiling the heel; for e. unple, over the bull portion,

These ic-vices are of e character to we 40 sent projections :ttlfl )te-(l to peuctrutc into soitcuinnteriuie, suc as soft soil and the like to u'll'ori i :1 suitable grip to pro e-iii slipping, and suction cups which are so up rung-ed as to become cficctivc as such when 5 the sole engages a hard surface. The sue" -tion cups prcferuhly are of such character that in soft ground they act as projoctionu to grip the ground and on luml surface. they act after the usual manner of emotion cups.

The anti-slipping devices illustrated comprise suction cu s and projections which preferably extcu beyondthe plane of the cups. The suction cups may be of any suitable form. As shown, annular projections form the cups which are made dee er by recesses 6 in the body of the sole. 'Fhe have the effect of causing the suption on s to remain as operativ'e elements e en a ter the annular projections are entirel worn away in use.

W on a. shoe having the sole shown engages 1 hard smooth surface the rojeetions 7, if ieldahle as in the preferre structure, will e deformed or bent to bring the suc- 'tion cups lute contact with the surface and therefore into operation to IJHH'GDC slipping. When engaging soft ground the projections 7, us ulso the annular projections 5, penetrate into the ground to grip the szuuc), The urruziu mcut shown, in which 'the projections are within the vacuum cups, preecute the ilvzmtage that the yielding and iicxu. mo iil lfflllS of the projections have u tender. to dislodge any d rt which may cling within the cups and furthermore the,

4 i; in 'ihe sole effect an additional v 211;; of the p ojections and causes I, ichumn of vacuum cup and projection it! he maintained as the sole wears.

The de ree of flexibility of the material of the w l will depend upon the use for which it is primarily designed. Preferably a, uuteriul selected for the sole as a whole, which will at ford the desired resiliency in ihe annular projections which form the vacuum cups and in the central projections so that it will not be necessary to combine nmteriut of ditlerent qualities in a sole;

Various {,(T-Lnililfi embodiments may be aiie the invention and various changes :1, the embodiment described within the a-cope of the subgoiuedcleims.

1 claim as my invention:

1, A flexible composition shoe sole having annular projections formin vacuum cups and central yiclcleble projections within Mid annular projections extending beyond the plunc thereof, the Sole bein re cessed within the annular projections elow its normal surface substantially as and for the purposes described.

2. A hoe sole of molded resilient emnposition having, a series of vaeuum cups (lisl tributed over the area of the sole, each cup com rising an annular ring projecting heyon the normal plane of the stile and a depression within said ring whirl extends into the body of the sole, together with a ventral 10 projection within the annular ring extending beyond the plane of the ring, sairl pmjeetion being resilient whereby it will yield to the plane of the annular ring under a predetermined pressure and the vavuuin eup will he brought into operation.

In testinmny whereof". I have sig'nwl my name to this qweilieutiun tlii lllllll (lay of Ma reh, 1922.

LAFREXCIC .\l. OAKLEY. 

